Scanner observations of comet P/Crommelin 18181 |
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| Authors: | Goraya P S Sanwal B B Rautela B S |
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| Institution: | (1) Uttar Pradesh State Observatory, Manora Peak, Naini Tal, India |
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| Abstract: | Spectral scans of the coma of comet P/Crommelin 1818. I have been obtained in the wavelength range  3200–6500 Å. Strong emission features of CN(3883 Å) and C2 Swan bands (4695, 5165, and 5538 Å) have been identified. Some weak emission features of CH(3890 Å), C3(4050 Å), CN(4200 »), and C2 + CH(4358 ») were also detected. Sodium was found to be absent in this comet. An estimate of CN and C2 abundances has been made and their production rate have been derived. |
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